Foundation Devices

Foundation Passport Core

Name: Foundation Passport Core
Brand: Foundation Devices
Price: 199 USD
Availability: InStock
Rating: 4.4 (1 reviews)

Sleek Bitcoin-only air-gapped signer with a keypad and camera. Beautiful and open-source.

Our honest take: A polished, fully open, genuinely air-gapped Bitcoin-only signer that justifies its premium for anyone who wants isolation and design without compromise. Read the full 11-source review →

Overview

The Foundation Passport (Core) is a Bitcoin-only, air-gapped hardware wallet that stands out for combining serious security with a genuinely beautiful, phone-inspired design. Made by Foundation Devices, it uses a camera and microSD for fully air-gapped operation — it never needs to connect to a computer — and pairs with its own clean Envoy mobile app as well as third-party wallets like Sparrow.

Security-wise it ticks the important boxes: open-source firmware, a secure element, Bitcoin-only scope for a reduced attack surface, and a numeric keypad plus camera for air-gapped QR signing. Transactions are created in your software wallet, passed to the Passport as a QR code or via microSD, signed offline, and returned the same way, so your keys stay isolated. The Envoy app is notably polished and beginner-friendly for an air-gapped device.

Honest trade-offs: being Bitcoin-only means no altcoins, and air-gapped QR/SD workflows are inherently a little slower than just plugging in a USB wallet. It's also pricier than budget air-gap options like the Blockstream Jade. But if you want a device that's simultaneously security-focused, open-source, and a pleasure to use and look at, the Passport Core is a standout Bitcoin-only air-gapped signer.

Key features

Fully air-gapped: camera QR and microSD, no computer needed
Bitcoin-only firmware for reduced attack surface
Open-source firmware and a secure element
Polished, beginner-friendly Envoy companion app
Works with third-party wallets like Sparrow
Numeric keypad and clear display; phone-like design
Rechargeable battery

Specs

connection camera QR + microSD
open Source Yes
secure Element Yes
bitcoin Only Yes

Who it’s for

Design-conscious Bitcoiners who want a clean BTC-only air-gap device.

Watch: hands-on videos

Foundation Passport: Unboxing, Setup, Demo & Review with Envoy & Sparrow Unboxing, setup, demo and review of the Foundation Passport using the Envoy app and Sparrow Wallet.

The Foundation Passport Is One Cool Looking BTC Hardware Wallet A look at and review of the Foundation Passport, focusing on its design and features.

Foundation Passport Core: frequently asked questions

Is the Passport truly air-gapped?

Yes. It signs transactions via camera-scanned QR codes or microSD and never needs a USB data connection to a computer.

Does it support altcoins?

No. The Passport is Bitcoin-only, which keeps its scope and attack surface small. Choose a multi-coin device if you need other assets.

Is air-gapped signing hard for beginners?

It's more deliberate than a plug-in wallet, but Foundation's Envoy app is unusually polished and makes the QR workflow about as easy as air-gap gets.

How does it compare to a Coldcard?

Both are Bitcoin-only air-gapped signers. The Passport emphasizes design and ease of use; the Coldcard emphasizes deep power-user features and a steeper learning curve.